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Platinum pixie, brunette Louise Brooks bob, apricot Marilyn curls? "It's all about how she wants to play that day," hairstylist Enzo Angileri has said of Charlize Theron's adventurous take on hair. Although she had no problem donning prosthetic, well, everything for her Oscar-winning turn in "Monster," the star is seemingly allergic to wigs, bouncing from style to style and hue to hue in service of her roles. Needless to say, no matter what she tries, the former model looks spectacular. After winning a modeling contest in South Africa ("My mother entered me as kind of a joke"), the strawberry blond beauty moved to L.A.

1993 (above): After winning a modeling contest in South Africa ("My mother entered me as kind of a joke"), the strawberry blond beauty moved to L.A. (CREDIT: Camera Press/Retna) See the Full Story

The diamond headband Best Actress nominee Theron wore to the Golden Globes was vintage Cartier—and lives full-time in a private Cartier museum in Geneva. "Because the jewelry was so special, the hair had to be understated," hairstylist Enzo Angileri told us. Before pinning and twisting the hair into an undone bun, he spritzed on Moroccanoil Frizz Control to tame flyaways and fuzz. "I wanted to choose my own messy pieces," he said.

Theron went with a mod, '60s-inspired look for the Oscars. "The focus is on the eye with the exaggerated lashes and liner, so I kept the rest of her face soft and peachy," says makeup artist Pati Dubroff.